You need to say something but you couldn’t. The body begins to feel the tension of those words and thoughts stuck in you mouth. At first they were words unexpressed, then they become thoughts suppressed. And finally when they are pushed out of your consciousness, they just stay in your body as the tension. This tension stresses your system and if sufficiently severe, causes pain.
So that is how your body spoke on your behalf. Are you ignoring any pain? What was the body speaking, perhaps on your behalf?